Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 0, -1), (1, 0, 1), (1, 1, 0)}.
A150352
Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 0, -1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =91a(5) =341a(6) =1430a(7) =5698a(8) =24704a(9) =102022a(10) =451844a(11) =1910457a(12) =8586273a(13) =36916061a(14) =167694462a(15) =730079744a(16) =3343399996a(17) =14698697009a(18) =67740524161a(19) =300152425534
External references
- oeis: A150352